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Finding the Fourth Proportional to 8,510.76, 11,745.54 and 4,973.40

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Solution

The fourth proportional to 8,510.76, 11,745.54 and 4,973.40 is: 6,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510.76 : 11,745.54 = 4,973.40 : x
  2. Step 2: Convert to fraction form
    8,510.76/11,745.54 = 4,973.40/x
  3. Step 3: Cross multiply
    8,510.76x = 11,745.54 × 4,973.40
  4. Step 4: Simplify right side
    8,510.76x = 58,415,268.64
  5. Step 5: Solve for x
    x = 58,415,268.64/8,510.76
  6. Step 6: Final answer
    x = 6,863.70

Related Problems

Find fourth proportional to 4,255.38, 5,872.77 and 2,486.70
Half scale
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Double scale
Find fourth proportional to 8,511.76, 11,746.92 and 4,974.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.